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Financial Risk Management - Summary of Financial Instruments (Detail) - SEK (kr) kr in Billions | Dec. 31, 2024 | Dec. 31, 2023
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Disclosure Of Financial Instruments [Line Items] |  |  |
Assets at fair value through profit or loss |  | kr 107.6 | kr 89.7
Assets at amortized cost |  | 0.6 | 1.0
Financial liabilities at FVTPL |  | (39.0) | (39.8)
Liabilities at amortized cost |  | (32.5) | (36.7)
Customer finance [member] |  |  |
Disclosure Of Financial Instruments [Line Items] |  |  |
Assets at fair value through profit or loss |  | 4.5 | 6.9
Customer finance [member] | Level 3 [member] |  |  |
Disclosure Of Financial Instruments [Line Items] |  |  |
Assets at fair value through profit or loss |  | 4.5 | 6.9
Interest bearing liabilities [member] |  |  |
Disclosure Of Financial Instruments [Line Items] |  |  |
Assets at fair value through profit or loss |  | 31.7 | 19.1
Interest bearing liabilities [member] | Level 1 [member] |  |  |
Disclosure Of Financial Instruments [Line Items] |  |  |
Assets at fair value through profit or loss |  | 30.4 | 18.6
Interest bearing liabilities [member] | Level 2 [member] |  |  |
Disclosure Of Financial Instruments [Line Items] |  |  |
Assets at fair value through profit or loss |  | 1.3 | 0.5
Cash equivalents [member] |  |  |
Disclosure Of Financial Instruments [Line Items] |  |  |
Assets at fair value through profit or loss | [1] | 24.3 | 17.5
Cash equivalents [member] | Level 1 [member] |  |  |
Disclosure Of Financial Instruments [Line Items] |  |  |
Assets at fair value through profit or loss | [1] | 0.3 | 0.8
Cash equivalents [member] | Level 2 [member] |  |  |
Disclosure Of Financial Instruments [Line Items] |  |  |
Assets at fair value through profit or loss | [1] | 24.0 | 16.7
Other Financial Asset [member] |  |  |
Disclosure Of Financial Instruments [Line Items] |  |  |
Assets at fair value through profit or loss |  | 2.7 | 2.1
Assets at amortized cost |  | 0.3 | 0.6
Other Financial Asset [member] | Level 1 [member] |  |  |
Disclosure Of Financial Instruments [Line Items] |  |  |
Assets at fair value through profit or loss |  | 0.8 | 0.1
Other Financial Asset [member] | Level 3 [member] |  |  |
Disclosure Of Financial Instruments [Line Items] |  |  |
Assets at fair value through profit or loss |  | 1.9 | 2.0
Trade receivables [member] |  |  |
Disclosure Of Financial Instruments [Line Items] |  |  |
Assets at fair value through OCI |  | 44.2 | 42.2
Trade receivables [member] | Level 3 [member] |  |  |
Disclosure Of Financial Instruments [Line Items] |  |  |
Assets at fair value through OCI |  | 44.2 | 42.2
Interest bearing securities [member] |  |  |
Disclosure Of Financial Instruments [Line Items] |  |  |
Assets at amortized cost |  | 0.3 | 0.4
Parent Company borrowings [member] |  |  |
Disclosure Of Financial Instruments [Line Items] |  |  |
Financial liabilities at designated FVTPL |  | (35.7) | (38.0)
Parent Company borrowings [member] | Level 1 [member] |  |  |
Disclosure Of Financial Instruments [Line Items] |  |  |
Financial liabilities at designated FVTPL |  | (19.7) | (23.7)
Parent Company borrowings [member] | Level 2 [member] |  |  |
Disclosure Of Financial Instruments [Line Items] |  |  |
Financial liabilities at designated FVTPL |  | (16.0) | (14.3)
Other current liabilities [member] |  |  |
Disclosure Of Financial Instruments [Line Items] |  |  |
Financial liabilities at FVTPL |  | (3.3) | (1.8)
Other current liabilities [member] | Level 2 [member] |  |  |
Disclosure Of Financial Instruments [Line Items] |  |  |
Financial liabilities at FVTPL |  | (3.3) | (1.8)
Trade payables [member] |  |  |
Disclosure Of Financial Instruments [Line Items] |  |  |
Liabilities at amortized cost |  | (30.2) | (27.8)
Borrowings [member] |  |  |
Disclosure Of Financial Instruments [Line Items] |  |  |
Liabilities at amortized cost |  | (2.3) | (8.9)
Other Current Asset [Member] |  |  |
Disclosure Of Financial Instruments [Line Items] |  |  |
Assets at fair value through profit or loss |  | 0.2 | 1.9
Other Current Asset [Member] | Level 2 [member] |  |  |
Disclosure Of Financial Instruments [Line Items] |  |  |
Assets at fair value through profit or loss |  | kr 0.2 | kr 1.9
[1] | Total Cash and cash equivalent is SEK 43.9 (35.2) billion, of which SEK 24.3 (17.5) billion relating to Cash equivalents are presented in the table above.

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- Definition The amount of financial assets at amortised cost. The amortised cost is the amount at which financial assets are measured at initial recognition minus principal repayments, plus or minus the cumulative amortisation using the effective interest method of any difference between that initial amount and the maturity amount, and adjusted for any impairment. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 8 -Subparagraph f -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_8_f&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of financial assets that are measured at fair value and for which gains (losses) are recognised in profit or loss. A financial asset shall be measured at fair value through profit or loss unless it is measured at amortised cost or at fair value through other comprehensive income. A gain (loss) on a financial asset measured at fair value shall be recognised in profit or loss unless it is part of a hedging relationship, it is an investment in an equity instrument for which the entity has elected to present gains and losses in other comprehensive income or it is a financial asset measured at fair value through other comprehensive income. [Refer: At fair value [member]; Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 8 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_8_a&doctype=Standard -URIDate 2024-03-27 + Details
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